纺织学报 ›› 2011, Vol. 32 ›› Issue (8): 1-6.

• 纤维材料 •    下一篇

虎纹捕鸟蛛丝蛋白/丝素复合纤维的结构与力学性能

张敏,张野妹,朱仁宽,吴维,张爱丽,潘志娟   

  1. 苏州大学纺织与服装工程学院
  • 收稿日期:2010-10-19 修回日期:2011-02-18 出版日期:2011-08-15 发布日期:2011-08-15
  • 通讯作者: 潘志娟 E-mail:zhjpan@suda.edu.cn
  • 基金资助:

    市级

Structure and Properties of Electrospun Ornithoctonus huwenna spider silk protein/silk compound fiber

  • Received:2010-10-19 Revised:2011-02-18 Online:2011-08-15 Published:2011-08-15

摘要: 本文以虎纹捕鸟蛛丝/六氟异丙醇(HFIP)和丝素/HFIP的混合液为纺丝液,制备了虎纹捕鸟蛛丝蛋白/丝素复合纳米纤维,并通过SEM、FT-IR、XRD研究了蜘蛛丝蛋白和丝素的混合比例对纤维的形态结构、分子构象、结晶结构的影响,分析了蜘蛛丝蛋白对静电纺丝素纤维的力学增强效应。结果表明,随着蛛丝蛋白含量的增加,复合纤维的平均直径明显减小,直径小于300nm的纤维数量增加;添加一定量的蜘蛛丝蛋白有助于改善静电纺丝素纤维毡的力学性能。FT-IR和XRD谱图都表明,蜘蛛丝蛋白的质量分数对复合纤维中β-折叠、无规卷曲、α-螺旋和β-转角构象分子的含量均无规律性的影响。

Abstract: spidroin / silk composite nano-fibers were obtained by electrospinning with the mixed solution of Ornithoctonus huwenna spider silk / 1,1,1,3,3,3,-hexafluoro-2-propanol (HFIP) and silk / HFIP. The morphology, molecular conformations, crystallinity degree and mechanical property of the electrospun fibers were investigated by means of SEM, FT-IR, XRD and tensile test. The results indicated that spider silk protein attenuated the fiber diameter and enhanced the mechanical property of the electrospun silk fibers. The diameter of electrospun silk fibers were coarse, while with the addition of spider silk protein, the diameter of the silk / spidroin composite fibers decreased significantly, the number of fibers with diameters <300nm increased. The mechanical property of the electrospun fiber mat was improved by adding a certain amount of spider silk protein in the silk / HFIP solution. The FT-IR and XRD analysis showed that the content of spidroin have no regular affaction of conformation.

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